Engine



FIG. 1 is a front perspective view of an engine according to the invention.

FIG. 2 is a front view of the engine of FIG. 1.

FIG. 3 is a rear view of the engine of FIG. 1.

FIG. 4 is a left side view of the engine of FIG. 1.

FIG. 5 is a right side view of the engine of FIG. 1.

FIG. 6 is a top plan view of the engine of FIG. 1.

FIG. 7 is a bottom plan view of the engine of FIG. 1; and,

FIG. 8 is a rear perspective view of the engine of FIG. 1.

The broken lines illustrate portions of the engine and form no part of the claimed design. 

CLAIM The ornamental design for an engine, as shown and described. 